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<div id="overview"><a href="../../../../../../../../../../../../apidocs/org/sakaiproject/genericdao/springutil/CurrentClassLoaderBeanNameAutoProxyCreator.html">View Javadoc</a></div><pre>

<a name="1" href="#1">1</a>   <em>/**<em>*</em></em>
<a name="2" href="#2">2</a>   <em> * $Id: CurrentClassLoaderBeanNameAutoProxyCreator.html 11 2009-01-29 14:58:33Z azeckoski $</em>
<a name="3" href="#3">3</a>   <em> * $URL: http://genericdao.googlecode.com/svn/maven/site/xref/org/sakaiproject/genericdao/springutil/CurrentClassLoaderBeanNameAutoProxyCreator.html $</em>
<a name="4" href="#4">4</a>   <em> * CurrentClassLoaderBeanNameAutoProxyCreator.java - genericdao - May 7, 2008 10:24:18 AM - azeckoski</em>
<a name="5" href="#5">5</a>   <em> **************************************************************************</em>
<a name="6" href="#6">6</a>   <em> * Copyright (c) 2008 Aaron Zeckoski</em>
<a name="7" href="#7">7</a>   <em> * Licensed under the Apache License, Version 2.0</em>
<a name="8" href="#8">8</a>   <em> * </em>
<a name="9" href="#9">9</a>   <em> * A copy of the Apache License has been included in this </em>
<a name="10" href="#10">10</a>  <em> * distribution and is available at: <a href="http://www.apache.org/licenses/LICENSE-2.0.txt" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0.txt</a></em>
<a name="11" href="#11">11</a>  <em> *</em>
<a name="12" href="#12">12</a>  <em> * Aaron Zeckoski (azeckoski@gmail.com) (aaronz@vt.edu) (aaron@caret.cam.ac.uk)</em>
<a name="13" href="#13">13</a>  <em> */</em>
<a name="14" href="#14">14</a>  
<a name="15" href="#15">15</a>  <strong>package</strong> org.sakaiproject.genericdao.springutil;
<a name="16" href="#16">16</a>  
<a name="17" href="#17">17</a>  <strong>import</strong> java.util.ArrayList;
<a name="18" href="#18">18</a>  <strong>import</strong> java.util.Arrays;
<a name="19" href="#19">19</a>  <strong>import</strong> java.util.List;
<a name="20" href="#20">20</a>  
<a name="21" href="#21">21</a>  <strong>import</strong> org.springframework.aop.Advisor;
<a name="22" href="#22">22</a>  <strong>import</strong> org.springframework.aop.TargetSource;
<a name="23" href="#23">23</a>  <strong>import</strong> org.springframework.aop.framework.ProxyFactory;
<a name="24" href="#24">24</a>  <strong>import</strong> org.springframework.aop.framework.adapter.AdvisorAdapterRegistry;
<a name="25" href="#25">25</a>  <strong>import</strong> org.springframework.aop.framework.adapter.GlobalAdvisorAdapterRegistry;
<a name="26" href="#26">26</a>  <strong>import</strong> org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator;
<a name="27" href="#27">27</a>  <strong>import</strong> org.springframework.util.ClassUtils;
<a name="28" href="#28">28</a>  
<a name="29" href="#29">29</a>  <em>/**<em>*</em></em>
<a name="30" href="#30">30</a>  <em> * This sets the {@link ClassLoader} for the {@link BeanNameAutoProxyCreator} to the current</em>
<a name="31" href="#31">31</a>  <em> * one that this class exists in&lt;br/></em>
<a name="32" href="#32">32</a>  <em> * Compatible with Spring 1.2.8+</em>
<a name="33" href="#33">33</a>  <em> * </em>
<a name="34" href="#34">34</a>  <em> * @author Aaron Zeckoski (azeckoski@gmail.com)</em>
<a name="35" href="#35">35</a>  <em> */</em>
<a name="36" href="#36">36</a>  <strong>public</strong> <strong>class</strong> <a href="../../../../org/sakaiproject/genericdao/springutil/CurrentClassLoaderBeanNameAutoProxyCreator.html">CurrentClassLoaderBeanNameAutoProxyCreator</a> <strong>extends</strong> BeanNameAutoProxyCreator {
<a name="37" href="#37">37</a>  	<strong>private</strong> <strong>static</strong> <strong>final</strong> <strong>long</strong> serialVersionUID = 1L;
<a name="38" href="#38">38</a>  
<a name="39" href="#39">39</a>  	<strong>protected</strong> ClassLoader myClassLoader = CurrentClassLoaderBeanNameAutoProxyCreator.<strong>class</strong>.getClassLoader();
<a name="40" href="#40">40</a>  
<a name="41" href="#41">41</a>  	<em>/**<em>** only works with Spring 2.0.x</em></em>
<a name="42" href="#42">42</a>  <em>   @Override</em>
<a name="43" href="#43">43</a>  <em>   public void setBeanClassLoader(ClassLoader classLoader) {</em>
<a name="44" href="#44">44</a>  <em>      // this is basically ignoring the input classLoader and setting it to the one</em>
<a name="45" href="#45">45</a>  <em>      // which this class is currently part of</em>
<a name="46" href="#46">46</a>  <em>      super.setBeanClassLoader(myClassLoader);</em>
<a name="47" href="#47">47</a>  <em>   }</em>
<a name="48" href="#48">48</a>  <em>	 ***/</em>
<a name="49" href="#49">49</a>  
<a name="50" href="#50">50</a>  	<em class="comment">// below needed to make this work with spring 1.2.8</em>
<a name="51" href="#51">51</a>  	<strong>private</strong> <strong>boolean</strong> freezeProxy = false;
<a name="52" href="#52">52</a>  	@Override
<a name="53" href="#53">53</a>  	<strong>public</strong> <strong>void</strong> setFrozen(<strong>boolean</strong> frozen) {
<a name="54" href="#54">54</a>  		<strong>this</strong>.freezeProxy = frozen;
<a name="55" href="#55">55</a>  	}
<a name="56" href="#56">56</a>  	@Override
<a name="57" href="#57">57</a>  	<strong>public</strong> <strong>boolean</strong> isFrozen() {
<a name="58" href="#58">58</a>  		<strong>return</strong> <strong>this</strong>.freezeProxy;
<a name="59" href="#59">59</a>  	}
<a name="60" href="#60">60</a>  
<a name="61" href="#61">61</a>  	<strong>protected</strong> String[] interceptorNames = <strong>new</strong> String[0];
<a name="62" href="#62">62</a>  	@Override
<a name="63" href="#63">63</a>  	<strong>public</strong> <strong>void</strong> setInterceptorNames(String[] interceptorNames) {
<a name="64" href="#64">64</a>  		<strong>this</strong>.interceptorNames = interceptorNames;
<a name="65" href="#65">65</a>  	}
<a name="66" href="#66">66</a>  
<a name="67" href="#67">67</a>  	<strong>private</strong> AdvisorAdapterRegistry advisorAdapterRegistry = GlobalAdvisorAdapterRegistry.getInstance();
<a name="68" href="#68">68</a>  	@Override
<a name="69" href="#69">69</a>  	<strong>public</strong> <strong>void</strong> setAdvisorAdapterRegistry(AdvisorAdapterRegistry advisorAdapterRegistry) {
<a name="70" href="#70">70</a>  		<strong>this</strong>.advisorAdapterRegistry = advisorAdapterRegistry;
<a name="71" href="#71">71</a>  	}
<a name="72" href="#72">72</a>  
<a name="73" href="#73">73</a>  	<strong>private</strong> <strong>boolean</strong> applyCommonInterceptorsFirst = <strong>true</strong>;
<a name="74" href="#74">74</a>  	@Override
<a name="75" href="#75">75</a>  	<strong>public</strong> <strong>void</strong> setApplyCommonInterceptorsFirst(<strong>boolean</strong> applyCommonInterceptorsFirst) {
<a name="76" href="#76">76</a>  		<strong>this</strong>.applyCommonInterceptorsFirst = applyCommonInterceptorsFirst;
<a name="77" href="#77">77</a>  	}
<a name="78" href="#78">78</a>  
<a name="79" href="#79">79</a>  	@SuppressWarnings(<span class="string">"unchecked"</span>)
<a name="80" href="#80">80</a>  	<strong>protected</strong> <strong>boolean</strong> shouldProxyTargetClass(Class beanClass, String beanName) {
<a name="81" href="#81">81</a>  		<em class="comment">// note that we are ignoring the ConfigurableListableBeanFactory check</em>
<a name="82" href="#82">82</a>  		<strong>return</strong> isProxyTargetClass();
<a name="83" href="#83">83</a>  	}
<a name="84" href="#84">84</a>  
<a name="85" href="#85">85</a>  	<strong>private</strong> Advisor[] resolveInterceptorNames() {
<a name="86" href="#86">86</a>  		Advisor[] advisors = <strong>new</strong> Advisor[<strong>this</strong>.interceptorNames.length];
<a name="87" href="#87">87</a>  		<strong>for</strong> (<strong>int</strong> i = 0; i &lt; <strong>this</strong>.<strong>int</strong>erceptorNames.length; i++) {
<a name="88" href="#88">88</a>  			Object next = getBeanFactory().getBean(<strong>this</strong>.interceptorNames[i]);
<a name="89" href="#89">89</a>  			advisors[i] = <strong>this</strong>.advisorAdapterRegistry.wrap(next);
<a name="90" href="#90">90</a>  		}
<a name="91" href="#91">91</a>  		<strong>return</strong> advisors;
<a name="92" href="#92">92</a>  	}
<a name="93" href="#93">93</a>  
<a name="94" href="#94">94</a>  	@SuppressWarnings(<span class="string">"unchecked"</span>)
<a name="95" href="#95">95</a>  	<strong>protected</strong> Advisor[] buildAdvisors(String beanName, Object[] specificInterceptors) {
<a name="96" href="#96">96</a>  		<em class="comment">// Handle prototypes correctly...</em>
<a name="97" href="#97">97</a>  		Advisor[] commonInterceptors = resolveInterceptorNames();
<a name="98" href="#98">98</a>  
<a name="99" href="#99">99</a>  		List allInterceptors = <strong>new</strong> ArrayList();
<a name="100" href="#100">100</a> 		<strong>if</strong> (spec<strong>if</strong>icInterceptors != <strong>null</strong>) {
<a name="101" href="#101">101</a> 			allInterceptors.addAll(Arrays.asList(specificInterceptors));
<a name="102" href="#102">102</a> 			<strong>if</strong> (commonInterceptors != <strong>null</strong>) {
<a name="103" href="#103">103</a> 				<strong>if</strong> (<strong>this</strong>.applyCommonInterceptorsFirst) {
<a name="104" href="#104">104</a> 					allInterceptors.addAll(0, Arrays.asList(commonInterceptors));
<a name="105" href="#105">105</a> 				}
<a name="106" href="#106">106</a> 				<strong>else</strong> {
<a name="107" href="#107">107</a> 					allInterceptors.addAll(Arrays.asList(commonInterceptors));
<a name="108" href="#108">108</a> 				}
<a name="109" href="#109">109</a> 			}
<a name="110" href="#110">110</a> 		}
<a name="111" href="#111">111</a> 		<em class="comment">//      if (logger.isDebugEnabled()) {</em>
<a name="112" href="#112">112</a> 			<em class="comment">//         int nrOfCommonInterceptors = (commonInterceptors != null ? commonInterceptors.length : 0);</em>
<a name="113" href="#113">113</a> 		<em class="comment">//         int nrOfSpecificInterceptors = (specificInterceptors != null ? specificInterceptors.length : 0);</em>
<a name="114" href="#114">114</a> 		<em class="comment">//         logger.debug("Creating implicit proxy for bean '" + beanName + "' with " + nrOfCommonInterceptors +</em>
<a name="115" href="#115">115</a> 		<em class="comment">//               " common interceptors and " + nrOfSpecificInterceptors + " specific interceptors");</em>
<a name="116" href="#116">116</a> 		<em class="comment">//      }</em>
<a name="117" href="#117">117</a> 
<a name="118" href="#118">118</a> 		Advisor[] advisors = <strong>new</strong> Advisor[allInterceptors.size()];
<a name="119" href="#119">119</a> 		<strong>for</strong> (<strong>int</strong> i = 0; i &lt; allInterceptors.size(); i++) {
<a name="120" href="#120">120</a> 			advisors[i] = <strong>this</strong>.advisorAdapterRegistry.wrap(allInterceptors.get(i));
<a name="121" href="#121">121</a> 		}
<a name="122" href="#122">122</a> 		<strong>return</strong> advisors;
<a name="123" href="#123">123</a> 	}
<a name="124" href="#124">124</a> 
<a name="125" href="#125">125</a> 	@SuppressWarnings(<span class="string">"unchecked"</span>)
<a name="126" href="#126">126</a> 	@Override
<a name="127" href="#127">127</a> 	<strong>protected</strong> Object createProxy(
<a name="128" href="#128">128</a> 			Class beanClass, String beanName, Object[] specificInterceptors, TargetSource targetSource) {
<a name="129" href="#129">129</a> 
<a name="130" href="#130">130</a> 		ProxyFactory proxyFactory = <strong>new</strong> ProxyFactory();
<a name="131" href="#131">131</a> 		<em class="comment">// Copy our properties (proxyTargetClass etc) inherited from ProxyConfig.</em>
<a name="132" href="#132">132</a> 		proxyFactory.copyFrom(<strong>this</strong>);
<a name="133" href="#133">133</a> 
<a name="134" href="#134">134</a> 		<strong>if</strong> (!shouldProxyTargetClass(beanClass, beanName)) {
<a name="135" href="#135">135</a> 			<em class="comment">// Must allow for introductions; can't just set interfaces to</em>
<a name="136" href="#136">136</a> 			<em class="comment">// the target's interfaces only.</em>
<a name="137" href="#137">137</a> 			Class[] targetInterfaces = ClassUtils.getAllInterfacesForClass(beanClass);
<a name="138" href="#138">138</a> 			<strong>for</strong> (<strong>int</strong> i = 0; i &lt; targetInterfaces.length; i++) {
<a name="139" href="#139">139</a> 				proxyFactory.addInterface(targetInterfaces[i]);
<a name="140" href="#140">140</a> 			}
<a name="141" href="#141">141</a> 		}
<a name="142" href="#142">142</a> 
<a name="143" href="#143">143</a> 		Advisor[] advisors = buildAdvisors(beanName, specificInterceptors);
<a name="144" href="#144">144</a> 		<strong>for</strong> (<strong>int</strong> i = 0; i &lt; advisors.length; i++) {
<a name="145" href="#145">145</a> 			proxyFactory.addAdvisor(advisors[i]);
<a name="146" href="#146">146</a> 		}
<a name="147" href="#147">147</a> 
<a name="148" href="#148">148</a> 		proxyFactory.setTargetSource(targetSource);
<a name="149" href="#149">149</a> 		customizeProxyFactory(proxyFactory);
<a name="150" href="#150">150</a> 
<a name="151" href="#151">151</a> 		proxyFactory.setFrozen(<strong>this</strong>.freezeProxy);
<a name="152" href="#152">152</a> 		<strong>return</strong> proxyFactory.getProxy(myClassLoader);
<a name="153" href="#153">153</a> 	}
<a name="154" href="#154">154</a> 
<a name="155" href="#155">155</a> }
</pre>
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